Shoe upper



FIG. 1 is a side elevational view of a shoe upper showing my new design;

FIG. 2 is a side elevational view of the other side of the shoe upper;

FIG. 3 is a front elevational view of the shoe upper;

FIG. 4 is a rear elevational view of the shoe upper; and,

FIG. 5 is a top plan view of the shoe upper.

The broken line showing the sole of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 